What is MQTT?
MQTT (Message Queuing Telemetry Transport) is the de facto standard for lightweight, event-driven data communication in industrial and building IoT, using a publish/subscribe model where sensors push data only when values change.
Message Queuing Telemetry Transport
MQTT is the modern industry’s answer to efficient, event-driven data transport. Unlike older request-response protocols (polling), MQTT uses a Publish/Subscribe model: a sensor “publishes” its value only when it changes, and all systems that need the information “subscribe” to it via a central broker.
External link: Read the specification at MQTT.org.
Why it changes everything:
Bandwidth: MQTT is extremely lightweight and dramatically reduces network load compared to polling devices every few seconds.
Security: Devices do not need open inbound ports to receive queries; they connect outward to a central Broker. This is a cornerstone of IT-ready network design.
State Management (Sparkplug B): Through the Sparkplug B extension, MQTT also handles state data – so you always know whether a sensor is online and whether a value is current or stale.
HubMind’s view: We see MQTT as the “glue” in The Engine. It is the protocol we most often recommend for bridging the gap between the facility’s control systems and cloud-based analytics platforms.
Read more: MQTT: from edge functionality to central service.
Want to know more about MQTT?
HubMind helps you understand and apply MQTT in your facility.